A customer has deployed a two node active-active IBM Sterling B2B Integrator (SBI) cluster in the
secure zone on two servers. The customer has installed two servers in the DMZ for the purpose of
installing remote SBI Perimeter Servers to facilitate communications with external partners. Each
server in the DMZ is multi-homed (two external facing NIC cards with two external IP addresses
and one internal facing NIC card) to two different external facing network segments for
redundancy in case one network segment fails or a NIC card fails. External partners will connect to
an external IP Load Balancer that will distribute inbound FTP/S, SFTP and HTTP Client sessions

across the Perimeter Servers. The Perimeter Servers will be installed without using wildcard
addresses. The customer requirement is that if any single server fails and oneServers. The
Perimeter Servers will be installed without using wildcard addresses. The customer? requirement
is that if any single server fails and one of the two external facing network segments fail, all the
other SBI nodes and remote Perimeter Server instances must continue to actively handle inbound
sessions for each protocol. What is the minimum number of remote Perimeter Server instances
that must be deployed in the DMZ?

A.
4

B.
6

C.
8

D.
12

Explanation: